* Federal, state & local estimated income tax paid for current year: Estimated tax vouchers, cancelled checks & other payment records
* IRA, Keogh and other retirement plan contributions: If self-employed, identify as for self or employees
* Records to document medical expenses
* Records to document medical expenses
* Records to document casualty or theft losses
* Records for any other expenditures that may be deductible
* Records for any other revenue or sales of property that may be taxable